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Dissertations / Theses on the topic 'Paper materials'

Author: Grafiati

Published: 4 June 2021

Last updated: 27 July 2025

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1

Goodwin, Andrew. "Photochemistry of lignocellulosic materials and related compounds." Thesis, Loughborough University, 1993. https://dspace.lboro.ac.uk/2134/32234.

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The primary photochemical processes of lignin-rich high-yield thermomechanical pulp (TMP) have been investigated with a view to understanding and ultimately preventing the yellowing (photoreversion) of such paper upon exposure to sunlight. This would enable their use in longer-life paper products and therefore represent large raw material and cost savings to the pulp and paper manufacturer.

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2

Khakalo, Alexey, Jarmo Kouko, Elias Retulainen, and Orlando J. Rojas. "Super-stretchable paper-based materials for 3D forming." Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2018. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-236369.

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Paper is renewable, recyclable, sustainable and biodegradable material and, as a result, paper-based materials are widely used in the world packaging market. However, paper-based materials cannot compete with plastics in terms of processability into various 3D shapes. This is due to poor formability of paper, which is closely associated with its toughness. To improve paper formability, we report on a facile and green method that combines fiber and paper mechanical modifications at different structural levels as well as biopolymer treatment via spraying. As a result, a remarkable elongation of

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3

James, Aaron. "Development of composites materials from waste paper and plastic." Australian Digital Thesis Program, 2006. http://adt.lib.swin.edu.au/public/adt-VSWT20070130.165426/index.html.

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Thesis (PhD) - Swinburne University of Technology, Industrial Research Institute Swinburne - 2006.<br>A thesis submitted for the degree of Doctor of Philosophy, Industrial Research Institute Swinburne, Swinburne University of Technology - 2006. Typescript. "August 2006". Includes bibliographical references (p. 361-389).

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4

Yoon, Se-Young. "Bonding Material Coated Clay for Improving Paper Properties." Diss., Georgia Institute of Technology, 2007. http://hdl.handle.net/1853/14540.

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The paper industry utilizes fillers either to reduce the cost or to provide desired functional or end-use properties of paper products. However, there are disadvantages associated with higher filler loadings beyond a certain level, which reduces paper strength. The present study focused on improving the physical property of filled papers. Three methods of structuring fillers were designed; precipitation with starch, complexation with starch and fatty acid, and regeneration with cellulose. Because cellulose and starch have hydroxyl groups on the chemical structure, the hydrogen bonding between

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5

Lindström, Nina, and Lien Pham. "Rock-Paper-Scissors : Questioning the effects of manipulative materials." Thesis, Högskolan i Halmstad, Akademin för lärande, humaniora och samhälle, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:hh:diva-28106.

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The purpose of the present study is to investigate what research show about the use of manipulative materials in the mathematics education and what factors have an impact on this approach. A definition of the problem<img src="https://cdncache-a.akamaihd.net/items/it/img/arrow-10x10.png" /> was formed when considering the decrease of Swedish pupils mathematical abilities presented in PISA. The intention with the present study was to assemble further knowledge in whether or not the use of manipulative materials could be a teaching method that could help improve this. The method used in this stud

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6

Alfthan, Johan. "Micro-mechanically based modeling of mechano-sorptive creep in paper." Doctoral thesis, KTH, Solid Mechanics, 2004. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-41.

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<p>The creep of paper is accelerated by moisture content changes. This acceleration is known as mechano-sorptive creep, which is also found in wood and some other materials. Mechano-sorptive creep has been known for several decades but it is still not well understood, and there is no generally accepted model explaining the effect. </p><p>In this thesis, it is assumed that mechano-sorptive creep is the result of transient redistributions of stresses during moisture content changes in combination with non-linear creep behaviour of the material. The stress redistributions are caused by the anisot

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7

Abedsoltan, Hossein. "Meso-Scale Wetting of Paper Towels." Miami University / OhioLINK, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=miami1501246506048675.

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8

Stenberg, Niclas. "On the out-of-plane mechanical behaviour of paper materials." Doctoral thesis, KTH, Solid Mechanics, 2002. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-3425.

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<p>This thesis deals with the through-thickness mechanicalbehaviour of paper materials. The material response undercombined normal and shear through-thickness loadings isfundamental for analysis and understanding of many end-use andconverting operations, such as folding, creasing, printing,calandering and cutting. Therefore, this thesis addressesissues of importance in product development within thepackaging and printing industries.</p><p>The objective of the thesis is to develop a constitutivemodel for paper that, in combination with appropriate in-planemodels, enables three-dimensional struc

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9

Pötzsch, Sina. "Influence of PLA on the mechanical properties of paper materials." Thesis, KTH, Hållfasthetslära (Inst.), 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-176012.

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The aim of the project is to produce a new type of paper with PLA that later will be converted into corrugated board. The PLA paper shall have enhanced moisture resistance and shall show less creep compared with conventional paper under a humid ambient climate. Therefore, dynamic sheets with different amounts of PLA (0 %, 5% and 10 %) are manufactured. The sheets are made from unbleached softwood kraft pulp with two different grinding ratios and pulp from recovered paper. As well as examining the effect of PLA in paper, the influences of different grinding ratios and pulps are investigated. Af

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10

Uusi-Tarkka, Eija Katariina. "Bio-based nonwoven fabric-like materials produced by paper machines." Thesis, Högskolan i Borås, Akademin för textil, teknik och ekonomi, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:hb:diva-10690.

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The purpose of this thesis is, in collaboration with the Swedish company Innventia, to explore the possibilities of using paper machines to create fabric-like nonwoven materials. As part of a relatively new research-area, it serves as some of the ground knowledge that is needed to drive this field forward. The research of this thesis is born from the increasing need for more environmental friendly textiles, and to find new uses for the paper production facilities and companies that are currently experiencing a decline in paper production. The materials used in the research were produced with t

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11

Van, Ewijk Stijn. "Sustainable use of materials in the global paper life cycle." Thesis, University College London (University of London), 2018. http://discovery.ucl.ac.uk/10052112/.

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Human activity has greatly affected the natural environment. The production and consumption of materials and products have contributed to the destruction and degradation of ecosystems worldwide. Evidence suggests that we increasingly endanger the ability of the environment to support our way of life. Efficient use of materials (e.g. waste prevention) and circulation of materials (e.g. recycling) are widely acknowledged means to reduce the impacts of production and consumption. However, for many reasons, the efficient and circular use of materials is not sufficient to meet targets for environme

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12

Okeyinka, Oriyomi M. "The applicability of recycled waste paper as lightweight building materials." Thesis, University of Wolverhampton, 2016. http://hdl.handle.net/2436/620495.

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In this era of increasing standard of living and rapid growth of civil engineering construction, environmental issues pertaining to natural resources depletion, global warming, energy crisis, waste pollution and greenhouse gas emission have been major issues of concern throughout the world and most especially in the construction industry. This research was conducted to investigate the applicability of recycled wastepaper as lightweight building materials with focus on contributing to sustainability in the creation of the built environment. The major aim was to develop an eco-friendly lightweig

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13

Daud, Wan Rosli Wan. "The mechanism of alkenyl succinic anhydride sizing." Thesis, Online version, 1988. http://ethos.bl.uk/OrderDetails.do?did=1&uin=uk.bl.ethos.329373.

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14

Thibaud, Denoyelle. "Mechanical properties of materials made of nano-cellulose." Thesis, KTH, Hållfasthetslära (Inst.), 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-29581.

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Recent experimental findings have demonstrated great mechanical properties of nanopaper compared to ordinary paper. In this work, we have studied the formation of the elastic modulus of paper. Our goal was to investigate the contribution of fibers, fiber bonds and network structure. A 2D finite element network model was developed to study the elastic properties of nanopaper. The model can handle very dense networks of large sizes. Networks were composed of bonded, curved and randomly oriented fibers. The fiber interaction was modeled with a bonding contact. The numerical analysis was compared

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15

Onumata, Yasushi. "Working mechanism of organic friction modifiers on steel and paper materials." Thesis, University of Leeds, 2016. http://etheses.whiterose.ac.uk/15439/.

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The effect of organic Friction Modifiers (FMs) on friction properties at steel and paper clutch materials is investigated, and their working mechanisms are assessed by the observation of reaction and adsorption films formed on the surface. FMs are essential additives for drivetrain lubricants to manage friction properties. Recently developed fuel efficient transmission systems such as Continuously Variable Transmission (CVT) require precise and complicated friction control. As a result it is extremely important for the detailed behaviour of the FMs and in particular their reactions with the su

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16

Rosdahl, Matilda. "Predicting failure distribution for varying load histories applied to paper materials." Thesis, Umeå universitet, Institutionen för fysik, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-184385.

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Paper materials are renewable and recyclable and are often used for packaging applications, e.g., as in corrugated fiberboard boxes. From an engineering perspective, paper materials can be used to construct packaging with low weight but with high relative strength. However, compared to other packaging materials, it can be a challenge to design paper-based packaging for distribution chains with demanding conditions. Boxes made from paper can be sensitive to exposure of moisture, duration of load, and dynamic forces. Along the distribution chain, boxes can be exposed to forces that could potenti

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17

Ryder, Kathryn. "The development of paper-based materials from low-grade apparel waste." Thesis, University of Manchester, 2014. https://www.research.manchester.ac.uk/portal/en/theses/the-development-of-paperbased-materials-from-lowgrade-apparel-waste(9aef77c7-57ac-4cf1-8d4b-0d6952dd4f19).html.

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The recycling rate of post-consumer apparel waste is low. This is compounded by our limited understanding of the fibre recovered from apparel waste and a lack of development in novel applications. Motivated by the growing rate of accumulation in unwanted clothing, this study focused on a number of integrated research themes aimed at understanding the nature of reclaimed cotton fibre, its use in paper-based materials and its utilisation in apparel related applications. Initially, the investigation characterised reclaimed cotton fibres from two different recovery machines (pinned air-layer and c

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18

Sivasundaram, Mathumathi. "Glass ceramics from pulp and paper waste ash." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape4/PQDD_0032/MQ64248.pdf.

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19

Kofender, Janet L. "The optical spread functions and noise characteristics of selected paper substrates measured in typical reflection optical system configurations /." Online version of thesis, 1987. http://hdl.handle.net/1850/11368.

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20

Coppola, Floriana <1989&gt. "Investigations of the kinetics and effects of degradation of paper-based materials." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2019. http://amsdottorato.unibo.it/8971/1/Coppola_Floriana_Tesi.pdf.

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In the digital era, paper is still regarded as the most widespread carrier of information. The present doctoral thesis deals with the kinetics and effects of paper degradation, investigating this undesired but inevitable process from three points of view. (I) Two types of contemporary paper, non-recycled and recycled, were characterised and aged at different temperatures and humidity levels to evaluate their rates of degradation. The variations of degree of polymerisation (DP) as a function of time for both papers were found to follow the rate law described by Ekenstam. Rate constants (k) and

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21

Soo, Haw Yun. "Commercialization of cryptomelane-type manganese oxide (OMS-2) nanowire paper oil sorbent." Thesis, Massachusetts Institute of Technology, 2007. http://hdl.handle.net/1721.1/42158.

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Thesis (M. Eng.)--Massachusetts Institute of Technology, Dept. of Materials Science and Engineering, 2007.<br>Includes bibliographical references (leaf 36).<br>Cryptomelane-type Manganese oxide (OMS-2, a group of Octahedral Molecular Sieves) nanowire paper exhibits interesting properties: reversible wettability, oleophilic while being hydrophobic, and high thermal stability. These properties open up possible markets for commercialization. This thesis reviews the market potential of each of these properties and explores the competitiveness of the nanowire paper in the proposed markets. The prop

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22

Todd, Kevin Michael. "Factors Affecting Raw Material Inventory Management in the Northeastern United States Pulp and Paper Industry." Fogler Library, University of Maine, 2004. http://www.library.umaine.edu/theses/pdf/ToddKM2004.pdf.

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23

Aulin, Christian. "Novel oil resistant cellulosic materials." Doctoral thesis, Stockholm : Kungliga Tekniska högskolan, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-11494.

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24

Skillington, Pauline. "Migration of chemicals through coated paperboard for food contact packaging." Thesis, Cape Peninsula University of Technology, 2014. http://hdl.handle.net/20.500.11838/752.

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Thesis submitted in fulfilment of the requirements for the degree Master of Technology: Chemistry in the Faculty of Applied Sciences at the Cape Peninsula University of Technology<br>Paperboard made from recycled fibres is being used more frequently in direct food packaging applications, in addition to its use as secondary and tertiary packaging. However, recent research has shown that there is a risk that harmful chemicals may migrate from the paperboard into the food. The simplest approach to reducing the migration of these contaminants is the use of barrier films. The barrier efficiencies o

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25

Aiken, Gregg W. "The use of a char pile reactor to study char bed processes." Diss., Georgia Institute of Technology, 1988. http://hdl.handle.net/1853/5734.

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26

Salado, Gerusa de Cássia. "Construíndo com tubos de papelão: um estudo da tecnologia desenvolvida por Shigeru Ban." Universidade de São Paulo, 2006. http://www.teses.usp.br/teses/disponiveis/18/18141/tde-05122006-154315/.

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Diante do contexto atual de grande preocupação com a preservação do meio ambiente e, ao mesmo tempo, milhares de pessoas desabrigadas devido à pobreza e às catástrofes ambientais, surge a necessidade de se estudar materiais de construção alternativos, que possam contribuir para amenizar essas questões. Com base nisso, este trabalho enfoca o emprego de tubos de papelão na construção civil pelo arquiteto japonês Shigeru Ban. Estudou-se os sistemas construtivos criados pelo referido arquiteto e as características técnicas dos tubos de papelão que este utiliza em suas obras. Foram realizados algun

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27

MINNITI, ZELICA. "Advanced characterization methods of organic materials of environmental and historical-artistic relevance through Micro-FTIR Mapping and Raman Microscopy." Doctoral thesis, Università degli studi di Catania, 2012. http://hdl.handle.net/20.500.11769/490550.

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For many centuries paper was the main material for recording cultural achievements all over the world. Paper is mostly made from cellulose with small amounts of organic and inorganic additives which allow its identification and characterization and may also contribute to its degradation. Prior to 1850, paper was made entirely from rags, using hemp, flax and cotton fibres. After this period, due to the enormous increase in demand, wood pulp began to be commonly used as raw material, resulting in a rapid degradation of paper. Spectroscopic techniques represent one of the most powerful tools to i

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28

Bache-Wiig, Jens, and Per Christian Henden. "Individual fiber segmentation of three-dimensional microtomograms of paper and fiber-reinforced composite materials." Thesis, Norwegian University of Science and Technology, Department of Computer and Information Science, 2005. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-9268.

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<p>The structure of a material is of special significance to its properties, and material structure has been an active area of research. In order to analyze the structure based on digital microcopy images of the material, noise reduction and binarization of these images are necessary. Measurements on fiber networks, found in paper and wood fiber - reinforced composites, require a segmentation of the imaged material sample into individual fibers. The acquisition process for modern X-ray absorption mode micro-tomographic images is described. An improved method for the binarization of paper

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29

Muhlbauer, Rachel Lynn. "Investigation of the structure-property-processing relationships in paper and carbon nanotube composite materials." Diss., Georgia Institute of Technology, 2014. http://hdl.handle.net/1853/54022.

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In this research, multiwalled carbon nanotube (MWNT) and paper composite materials were fabricated by dropcasting aqueous dispersions containing MWNTs onto filter paper using vacuum filtration, a highly unidirectional drying technique. By varying the pore size of the paper backbone as well as the number of deposited MWNT layers, composites with distinct architectures and properties were created. This thesis provides numerous examples that show how the processing methodology used influences the location of the MWNTs, the amount of MWNTs deposited, and the interaction between the MWNTs and the p

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30

Mukhopadhyay, Achira. "Bioconversion of paper mill lignocellulosic materials to lactic acid using cellulase enzyme complex and microbial cultures." Thesis, Manhattan, Kan. : Kansas State University, 2009. http://hdl.handle.net/2097/2332.

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31

Sood, Payal Lalit. "Grammage Probabality Distributions to Predict the Source of Floc Formation in Paper." Miami University / OhioLINK, 2009. http://rave.ohiolink.edu/etdc/view?acc_num=miami1249685634.

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32

Wajima, Takaaki. "Micro-porous Materials Synthesized from Paper Sludge Ash at Low Temperature, and its Chemical Mineralogy." Kyoto University, 2004. http://hdl.handle.net/2433/147718.

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Kyoto University (京都大学)<br>0048<br>新制・課程博士<br>博士(人間・環境学)<br>甲第10960号<br>人博第247号<br>15||202(吉田南総合図書館)<br>新制||人||61(附属図書館)<br>UT51-2004-G807<br>京都大学大学院人間・環境学研究科文化・地域環境学専攻<br>(主査)教授玉田攻, 教授鎌田浩毅, 教授堀智孝<br>学位規則第4条第1項該当

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33

Korbelyiova, Lucia. "Paper vs Leaf: Comparative Life Cycle Assessment Of Single-use Plates Made Of Renewable Materials." Thesis, Uppsala universitet, Institutionen för geovetenskaper, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-386367.

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Global plastic pollution of the natural environment is extremely detrimental as it is causing deaths of animal species. More than 80 % of marine litter is made up by plastics and 70 % of those are made up by disposable items. For this reason, the European Parliament has agreed to abolish the top ten single-use plastic items found in the marine environment from the EU market from 2021. Therefore, the fossil-based disposables will need to be substituted by disposables made from renewable materials. It is thus important to investigate the environmental impact of these alternatives through their l

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34

Burns, James Robert. "An investigation of Z-direction density profile development during wet pressing." Diss., Available online, Georgia Institute of Technology, 1992:, 1992. http://etd.gatech.edu/theses/available/ipstetd-442/burns%5Fjr.pdf.

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35

Elniski, Autumn. "Biogas Production From the Anaerobic Codigestion of Office Paper and Cow Manure in a Batch Reactor." Thesis, State University of New York Col. of Environmental Science & Forestry, 2017. http://pqdtopen.proquest.com/#viewpdf?dispub=10285346.

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<p> Anaerobic digestion can use cow manure and waste paper to produce energy in the form of flammable biogas. The grouping of these substrates is not well studied in comparison to other waste feedstocks. Finding ideal operating parameters and models to predict biogas production are vital for future studies and applications. Office paper and cow manure were combined in different ratios at 38.5°C. Four models (Time-Lag, No-Lag, Modified Gompertz, Modified Logistic) were fit to the experimental data to determine which model best predicted biogas production. The digester containing a paper to

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36

Gonçalves, Ricardo Miguel Romão. "Antenna design for passive sensors in non-conventional materials." Doctoral thesis, Universidade de Aveiro, 2016. http://hdl.handle.net/10773/17298.

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Doutoramento em Engenharia Eletrotécnica<br>Motivado pela larga expansão dos sistemas RFID e com o desenvolvimento do conceito de Internet das Coisas, a evolução no desenho e métodos de produção de antenas em suportes de materiais alternativos tem tido uma exploração intensiva nos últimos anos. Isto permitiu, não só o desenvolvimento de produtos no campo da interação homem-máquina, mas também tornar estes produtos mais pequenos e leves. A procura de novas técnicas e métodos para produzir eletrónica impressa e antenas em materiais alternativos e, portanto, uma porta aberta para o apare

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37

Liu, Cheyenne H. "Development and Characterization of Reagent Pencils for Microfluidic Paper Based Analytical Devices." DigitalCommons@CalPoly, 2016. https://digitalcommons.calpoly.edu/theses/1639.

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Microfluidic paper based analytical devices (microPADs) are a novel platform for point of care (POC) diagnostics. Limitations of reagent shelf life have been overcome with the introduction of reagent pencils as a method for solid-based reagent deposition. While useful, little work has been reported on the characterization and optimization of reagent pencils. Herein, an investigation on reagent pencil composition and efficiency is conducted via colorimetric release profile tests utilizing an erioglaucine disodium salt that yields a quantifiable blue colored product in the presence of water. Wit

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38

Di, Febo Roberta. "La ceràmica de Barcelona entre els segles XIII i XVIII a través de la seva caracterització arqueomètrica: el paper de l'anàlisi petrogràfica." Doctoral thesis, Universitat de Barcelona, 2016. http://hdl.handle.net/10803/400557.

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El treball de recerca d’aquesta tesi doctoral se centra en la caracterització petrogràfica dels materials ceràmics (segles XIII-XVIII) de la ciutat de Barcelona, aquesta última entesa no només com centre productor, sinó també com un important centre de recepció i d’exportació. Fins a dia d’avui, els estudis petrogràfics sobre els materials ceràmics apareguts a les excavacions de la ciutat de Barcelona han estat molt escadussers i puntuals i han centrat la seva atenció sobre ceràmiques de cronologies anteriors respecte el marc temporal d’aquesta tesi. Així doncs, la present contribució constitu

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39

Minniti, Zelica. "Advanced characterization methods of organic materials of environmental and historical-artistic relevance through Micro-FTIR Mapping and Raman Microscopy." Doctoral thesis, Università di Catania, 2012. http://hdl.handle.net/10761/959.

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For many centuries paper was the main material for recording cultural achievements all over the world. Paper is mostly made from cellulose with small amounts of organic and inorganic additives which allow its identification and characterization and may also contribute to its degradation. Prior to 1850, paper was made entirely from rags, using hemp, flax and cotton fibres. After this period, due to the enormous increase in demand, wood pulp began to be commonly used as raw material, resulting in a rapid degradation of paper. Spectroscopic techniques represent one of the most powerful tools to i

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40

Holmberg, Veronica. "Creating temperature stimulated paper muscles by printing and lamination." Thesis, Linköping University, Department of Science and Technology, 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-11766.

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<p>A paper that shows motion when being exposed to heat has in this study been called a paper muscle. A paper muscle can be used for many different applications, e.g. smart advertisement or indicators in printed paper products. The muscles created in the present work were prepared by gluing or printing a polymer layer onto paper. The polymer layers consisted of MELINEX, MYLAR or toner, which are known to expand when exposed to heat. Furthermore, all three material systems showed bending when exposed to heat.</p><p>A mechanical bilayer model was implemented and used to quantitatively study the

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41

Mostert, F. "Improving the Deviro panel : technical enhancements of a wood fibre-cement composite from paper mill de-inking sludge." Thesis, Stellenbosch : Stellenbosch University, 2012. http://hdl.handle.net/10019.1/49988.

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Thesis (MScFor)--Stellenbosch University, 2004.<br>ENGLISH ABSTRACT: This research focuses on the utilisation of de-inking sludge from a tissue mill to produce a wood-fibre inorganic composite called the Deviro panel. The study is based on the SA provisional patent 95/9594 by Ysbrandy and Gerischer' and the further research conducted by Crafford'. The patented Deviro panel contains up to 70% de-inking sludge. Cement and a cement extender serve to fortify the composite. The panel's fibre content of 25-30% is significantly greater than encountered in commercial fibre inorganic composites w

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42

Batterham, Ian, and n/a. "Office Copying 1950-1970 : thermographic processes, their deterioration and preservation." University of Canberra. School of Resource, Environmental & Heritage Sciences, 2000. http://erl.canberra.edu.au./public/adt-AUC20060607.171830.

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This work looks at a range of copying processes used between 1950 and 1970 and which can be gathered under the heading 'Thermography'. Thermography is a broad term covering those processes which utilise heat to produce their image. The main aims of the work were: to examine how and when each process was used; to determine the chemistry of each process; to examine the permanence of existing copies produced using the various processes; and to look at possible ways of improving the preservation prospects of these copies. These aims were addressed through both primary and secondary research mechan

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43

Jackson, Robert. "The interrelationship between religious education and religious studies : paper to accompany materials submitted for PhD by published work." Thesis, University of Warwick, 1993. http://wrap.warwick.ac.uk/71284/.

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Jarnerud, Tova. "Utilization of recovered lime-containing materials from pulp and paper industries as slag formers in stainless steel production." Licentiate thesis, KTH, Materialvetenskap, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-264244.

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In recent years, major efforts have been made to develop a more circular economy. The desire to reuse, remanufacture and recycle materials are important for the development towards a sustainable society. An extended lifespan of materials helps to reduce the amount of waste kept in landfills, as well as to reduce the extraction of natural resources. Pulp and paper and steel industries are two of the largest export industrial sectors in Sweden. It is well known that the pulp and paper industries also generates large amounts of organic and inorganic wastes, of which a significant part is kept in

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Modolo, Regina Célia Espinosa. "Valorization of solid wastes from cellulose and paper industry." Doctoral thesis, Universidade de Aveiro, 2014. http://hdl.handle.net/10773/13961.

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Doutoramento em Ciências e Engenharia do Ambiente<br>This thesis reports in detail studies of industrial solid wastes valorization as alternative raw materials. All tested wastes are classified as non-hazardous and are generated in the pulp and paper process, including primary sludge, dregs, grits, lime mud and bottom ash (this generated in a process that occurs in parallel to the production of cellulose, whose aim is the production of energy to supply the plant through the combustion of forest biomass in fluidized bed). A detailed general characterization was performed at each waste an

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Delgado, Aguilar Marc. "Nanotecnología en el sector papelero: mejoras en calidad y permanencia de las fibras de alto rendimiento y secundarias en una economía circular mediante el uso de nanofibras y el refino enzimático." Doctoral thesis, Universitat de Girona, 2015. http://hdl.handle.net/10803/326743.

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Bio and nano technologies are absent or incipient in papermaking industry and, concretely, in recycling and high-yield pulps sectors. In this sense, the present Thesis uses cellulose nanofibers (CNF), both in bulk and on surface, for physicomechanical properties enhancement of both recycled papers and of those made from high-yield fibers. Moreover, in order to reach even higher physicomechanical properties, the synergetic action between CNF and enzymatic refining was investigated. Recycling through mechanical refinement was found to produce papers with similar properties than the original ones

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Wu, Lulu. "Virus retentive filter paper for processing of plasma-derived proteins." Licentiate thesis, Uppsala universitet, Nanoteknologi och funktionella material, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-419899.

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The studies in the present thesis explored the feasibility of using nanocellulose-based filters in virus removal filtration of plasma-derived proteins. In Paper I, two-step nanofiltration of commercially available human serum albumin (HSA) product, which was diluted to 10 g L-1 by phosphate buffer saline (PBS) and adjusted pH to 7.4, was performed to remove soluble protein aggregates and reduce filter fouling. The two-step filtration of HSA employed nanocellulose-based filters of varying thickness, i.e. 11 μm and 22 μm filters. The removal of HSA aggregates during filtration through 11 μm p

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Xia, Wei. "Initial evaluation of briquetting possibilities of CaO-containing paper production waste : For use in metallurgical processes." Thesis, KTH, Materialvetenskap, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-234801.

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Paper and pulp industry and steel industry are two major industries in Sweden, both of which are facing big challenges to treat their waste products properly. In this thesis work, initial evaluation of mechanical properties of briquettes made of waste products was performed. Three different CaO-containing waste products (Mesa, Kalk, Fly Ash) from Stora Enso and SCA were pressed with one kind of binding material (AOD slag) from Outokumpu. Drop tests were carried out to test the impact strength of the lab-made briquettes. Three different parameters were investigated of their influence on the imp

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Glavan, Ana. "Chemical Approaches to the Surface Engineering of Paper and Cellulose-Based Materials for Microfluidics, Electronics and Low-Cost Diagnostics." Thesis, Harvard University, 2016. http://nrs.harvard.edu/urn-3:HUL.InstRepos:26718749.

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Paper (and other cellulose-based materials such as cotton thread and fabrics) are underexploited as materials for the construction of “high-tech” and “lab-on-a-chip” devices. One major drawback of paper is its tendency to absorb water from the environment and, with wetting, to change its mechanical properties; other challenges relate to control over the attachment of molecules (e.g. antibodies, DNA) and cells on its surface, and to the addition of electronic function. The goal of this thesis is to develop paper as a substrate for a range of applications— microfluidics, substrates for electroni

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Confortin, Daria. "Aging of cultural heritage materials: a physico-chemical approach to conservation science. Studies on paper, parchement, pigments and dyes." Doctoral thesis, Università degli studi di Padova, 2011. http://hdl.handle.net/11577/3421600.

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In this doctoral dissertation, photochemical and, in some cases, thermal aging (natural and accelerated) of materials from cultural heritage (paper, parchment, linseed oil paints, pigments and dyes) are studied with a number of both destructive and non-destructive experimental techniques such as Electron Paramagnetic Resonance (EPR) , Nuclear Magnetic Resonance-MObile Universal Surface Explorer (NMR-MOUSE) , High Performance Liquid Chromatography-Photo Diode Array (HPLC-PDA) , Liquid Chromatography-Mass Spectrometry (LC-MS) , Fiber Optics Reflectance Spectroscopy (FORS)3,1, Attenuated Total Re

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